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Hand-free receiver signal wire for mobile telephone

  • US 6,687,516 B2
  • Filed: 12/29/2000
  • Issued: 02/03/2004
  • Est. Priority Date: 10/08/1998
  • Status: Expired due to Fees
First Claim
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1. A signal wire connecting between a hands-free receiver and a mobile telephone, said signal wire comprising a first end having a hands-free receiver plug for connecting to a main circuit of the hands-free receiver, and a second end including a mobile telephone plug for connecting to an output receptacle of the mobile telephone;

  • said mobile telephone plug including a voltage control leg having a first replaceable voltage control branch resistor adapted to match a power supply circuit of the hands-free receiver to obtain a predetermined voltage supply output at said mobile telephone plug matching a voltage value required by the mobile telephone, wherein said predetermined voltage supply output is input to the mobile telephone to function as a power supply thereof;

    said mobile telephone plug including a mobile telephone voice output leg having at least one second replaceable branch resistor adapted to output voice signals from the mobile telephone to an input of a voice amplifying circuit of the hands-free receiver to obtain a predetermined voice signal level at said input of said voice amplifying circuit.

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